本文介绍了大面积锗光电接收器的光谱响应、量子效率、频率特性和I-V特性的测量方法。在波长为1.3μm处,响应度为0.47 A/W,量子效率为45％,频率响应为100kHz。在反向偏压为 5V,温度为 12℃时,反向漏电流(以电流密度表示)为 23×10~(-6)A/cm~2(直径为 7.5mm)。在10—60℃变温范围内,测定了接收器的I-V温度特性和暗电流与温度的关系。最后对测试系统和实验现象进行了初步讨论。 This article describes the measurement of the spectral response, quantum efficiency, frequency characteristics and I-V characteristics of large-area germanium photoreceptors. At a wavelength of 1.3 μm, the responsivity is 0.47 A / W, the quantum efficiency is 45% and the frequency response is 100 kHz. The reverse leakage current (expressed in terms of current density) is 23 × 10 -6 A / cm 2 (7.5 mm diameter) at a reverse bias of 5 V and a temperature of 12 ° C. In the temperature range of 10-60 ℃, the receiver’s I-V temperature characteristics and the relationship between dark current and temperature were measured. Finally, the test system and experimental phenomena were discussed.